Java 模拟post请求，发送json格式数据

import java.io.BufferedReader;

import java.io.DataOutputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLConnection;

import java.util.HashMap;

import java.util.Map;

import net.sf.json.JSONObject;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpMethod;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.commons.httpclient.methods.PostMethod;

import org.apache.commons.httpclient.params.HttpMethodParams;

import org.apache.http.HttpResponse;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.entity.StringEntity;

import com.zte.pp.otherplatforms.SHA1Manage;

import com.zte.pp.otherplatforms.ToOtherPlatforms;

import com.zte.pp.rest.util.RestUtil;

import com.zte.pp.standardurl.TrustSSL;

public class TestA {

public static String sendPost(String url, String param) {

PrintWriter out = null;

BufferedReader in = null;

String result = "";

try {

URL realUrl = new URL(url);

// 打开和URL之间的连接

URLConnection conn = realUrl.openConnection();

// 设置通用的请求属性

conn.setRequestProperty("Authorization", "authenticator=\"*****************\",platformID=\"******\"");

conn.setRequestProperty("Accept", "application/json");

//map.put("Content-Type", "text/plain;charset=UTF-8");

conn.setRequestProperty("Content-Type", "application/json");

// 发送POST请求必须设置如下两行

conn.setDoOutput(true);

conn.setDoInput(true);

// 获取URLConnection对象对应的输出流

out = new PrintWriter(conn.getOutputStream());

// 发送请求参数

out.print(param);

// flush输出流的缓冲

out.flush();

// 定义BufferedReader输入流来读取URL的响应

in = new BufferedReader(

new InputStreamReader(conn.getInputStream()));

String line;

while ((line = in.readLine()) != null) {

result += line;

}

} catch (Exception e) {

System.out.println("发送 POST 请求出现异常！"+e);

e.printStackTrace();

}

//使用finally块来关闭输出流、输入流

finally{

try{

if(out!=null){

out.close();

}

if(in!=null){

in.close();

}

}

catch(IOException ex){

ex.printStackTrace();

}

}

return result;

}

public static void main(String[] args) {

// String lts = sendPost("http://**********",

//
"{\"longUrl\":\"http://wapJ58a5yUGj8hFWIfk\",\"timeStamp\":\"1416555830\"}");

// System.out.println(lts);

}

}